Updated to use robot
as the defautl robot runner - pybot
is no longer supported.
Tried this first, but is unmaintained: https://github.com/sakari/robot-mode
The bigger problem, I wasn't able to save a buffer in robot mode.
Just want a little color and shortcuts to run tests for now.
Borrowed robot-font-lock-keywords
from sakari/robot-mode and combined with test runner shortcuts similar to
https://github.com/dougm/bats-mode and https://github.com/nlamirault/gotest.el